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What else can I help you with?
Can males be carriers of sexlinked traits?
No. Carriers are people that carry the gene for something but exhibit no phenotype for it. Since males have no extra copy to hide a recessive trait, they cannot be carriers for sex linked traits.Answ2. Followers of this question should consult say haemophilia in wikipedia.com.
Why are males more likely to inherit sex-linked traits?
Females have XX chromosomes and males have XY chromosomes. Sex-linked traits are almost always carried on the X chromosome. Males are more likely to inherit sex-linked traits because they have only one chromosome that can carry a trait. If a male gets a recessive sex-linked trait, they will always acquire it because they have no other chromosome that will dominant over the recessive. In contrast, females have two X chromosomes which carry sex-linked traits. If they receive a recessive sex-linked trait, they always have one other chromosome that could be dominant over the other. For example: B - regular vision trait b - color blindness If a female has a colorblind father (XbY) and a mother with regular vision (XBXB), she will have XBXb. Even though the recessive colorblind trait was passed onto her, she will still have regular vision because of her other chromosome. Thus, she will be a carrier for colorblindness. Say the daughter above had children with a man with regular vision (XBY). If they have a son, there is a 50% chance he will be colorblind because of his mother who is a carrier. If they had a daughter, no matter what, she would always have regular vision with 50% chance that she will be a carrier.
Where does the chromosome of galactosemia is located on?
Some scientists say: -The insulin dependent DDM1, Diabtese mellitus is on chromosome 6 -Type 1 Diabetes was found on chromosome 1q42, and possibly 11 -Type 2 Diabetes on Chromosomes 12 and/or 20
What does it mean when we say that a gene is expressed?
When we say that a gene is expressed, it means that the information encoded in the gene is used by the cell to make a specific protein or functional RNA molecule. This process is known as gene expression.
Does everyone have a recessive gene?
Yes. So do men. I believe it may be safe to say that any sexually reproducing individual will have at least some recessive genes. Women have 2 copys of the X chromosome, men have one copy of the Y chromosome and a single copy of the X chromosome. The Y chromosome contains much less information than the X chromosome. One of the genes on the Y chromosome is SRY this single gene prompts the body to develope into a male when the embyo is in the womb. In this case men have the gene and women don't have the gene, rather than women having a recessive copy of it. There are some XY women who have the SRY gene but lack a different gene which codes for the androgen receptors.
Can males be carriers of sexlinked traits?
No. Carriers are people that carry the gene for something but exhibit no phenotype for it. Since males have no extra copy to hide a recessive trait, they cannot be carriers for sex linked traits.Answ2. Followers of this question should consult say haemophilia in wikipedia.com.
Which chromosome is connected with colorblindness?
There are many chromosomes linked to colour blindness. If you are reading a really old text book or your teacher is a fossil and hasn't done any work since the 60's then they will say that colour blindness is linked to the sex chromosomes. More men than women have Red-Green colour blindness as the "dodgy" copy of the gene is on the X chromosome which males only get one copy of. Females have two X chromosomes and so are more likely to get at least one "good" copy of the gene. Yawn, this is a lie, well its outdated science which is just as bad. Currently around half the human chromosomes linked to colour blindness in one way or another.
Why are males more likely to inherit sex-linked traits?
Females have XX chromosomes and males have XY chromosomes. Sex-linked traits are almost always carried on the X chromosome. Males are more likely to inherit sex-linked traits because they have only one chromosome that can carry a trait. If a male gets a recessive sex-linked trait, they will always acquire it because they have no other chromosome that will dominant over the recessive. In contrast, females have two X chromosomes which carry sex-linked traits. If they receive a recessive sex-linked trait, they always have one other chromosome that could be dominant over the other. For example: B - regular vision trait b - color blindness If a female has a colorblind father (XbY) and a mother with regular vision (XBXB), she will have XBXb. Even though the recessive colorblind trait was passed onto her, she will still have regular vision because of her other chromosome. Thus, she will be a carrier for colorblindness. Say the daughter above had children with a man with regular vision (XBY). If they have a son, there is a 50% chance he will be colorblind because of his mother who is a carrier. If they had a daughter, no matter what, she would always have regular vision with 50% chance that she will be a carrier.
Where does the chromosome of galactosemia is located on?
Some scientists say: -The insulin dependent DDM1, Diabtese mellitus is on chromosome 6 -Type 1 Diabetes was found on chromosome 1q42, and possibly 11 -Type 2 Diabetes on Chromosomes 12 and/or 20
What does it mean when we say that a gene is expressed?
When we say that a gene is expressed, it means that the information encoded in the gene is used by the cell to make a specific protein or functional RNA molecule. This process is known as gene expression.
What do you call the genes that are located on the sex chromosomes?
genes located on sex chromosomes are called sex-linked genes. In humans, there are two types of sex chromosomes: X and Y chromosomes.Genes located on the X chromosome are called X-linked and genes located on the Y chromosome are called Y-linked chromosomes.
Why do sex-linked traits follow different patterns for inheritance than other traits?
Short Answer: There are just over a thousand genes on the X chromosome and about 26 on the Y. Of the 26 on the Y, 9 relate to sperm and one (SRY) relates to male anatomy, the others involved in general tasks. The fact that there are a hundred times more genes on the X chromosome means that traits related to the X, and variations in those traits, are far far more common. Sex-linked traits are those that can only be passed along from the father and not the mother or from the mother and not the father. Obviously, males do carry and pass on sex-linked traits, just not very many. Gender can only be passed along from the father, along with genes related to sperm. Females pass on to the male offspring a larger number of traits, (such as some color blindness and male pattern baldness) which have no counterpart in the Y chromosome. More: Males have an X and a Y chromosome and females have two X chromosomes. Because the Y chromosome is smaller than the X with far fewer genes, there are genes carried only on the X and only gotten from the mother. That does not mean that all males have Y chromosomes that are the same. Overwhelmingly though, the absence of the set of genes on the Y chromosome results in the corresponding genes on the X chromosome being expressed, in particular all of the X-linked disorders of a gene of an X chromosome in a male do not have a second X gene that can be expressed to compensate. Thus, there are a set of sex-linked traits that can only come from the mother. (Color blindness and male pattern baldness are the two most discussed examples.) A male offspring (son) has the same Y chromosome as the father and hence any traits influenced by that chromosome. A female offspring (daughter) has the same X chromosome as the father and hence any traits influenced by that chromosome. A recessive gene on the X from the father will not usually be expressed in a daughter, but a dominant gene on the X from the father will be expressed in the daughter. For a female to inherit a trait associated with an X-chromosome recessive gene, there must be two copies, one from each parent. Aside: The issue of gender-connected inherited traits has much more complexity than this simple discussion can address. For example, not all of the so-called male characteristics are carried on the male (Y) chromosome. The expression of genes on other chromosomes, from both the mother and father, is influenced by genes on the Y chromosome or simply by the absence of two X chromosomes. The reader should investigate further. Caveat: This discussion applies to humans and other mammals with the XX/XY sex determination system. See related links. Fun Fact: A woman discovered that the Y chromosome was male. While studying worms, in 1905, Nettie Stevens at Bryn Mawr College identified the Y chromosome as the determining factor in gender.
Does everyone have a recessive gene?
Yes. So do men. I believe it may be safe to say that any sexually reproducing individual will have at least some recessive genes. Women have 2 copys of the X chromosome, men have one copy of the Y chromosome and a single copy of the X chromosome. The Y chromosome contains much less information than the X chromosome. One of the genes on the Y chromosome is SRY this single gene prompts the body to develope into a male when the embyo is in the womb. In this case men have the gene and women don't have the gene, rather than women having a recessive copy of it. There are some XY women who have the SRY gene but lack a different gene which codes for the androgen receptors.
Is it linked to or linked with?
we can say both.
Why a species has homologous chromosomes?
Basically we are all made up from 50% mum and 50% dad. Chromosomes are a condensed version of our DNA; these chromosomes (DNA) contain the genes that tell our body what to do during development and throughout our lives. We have 23 chromosome pairs in total we get one chromosome from the mother and one from the father. The chromosomes are called homologous since each chromosome pair will contain the same genes on it but the genes will not necessarily code for the same thing. For example a chromosome will have the genes for eye color on it and since we have one from the mother and father we will have a pair of chromosomes with the gene with eye color on it. This would be a homologous chromosome pair, however one gene may say blue eyes the other may say brown eyes. The genes are still the same however each color would be a different allele for the gene.
Why are X linked traits more common in mals then in females?
This is because males have one X chromosome while females have two. Example: Say a mother is homozygous for a certain recessive X-linked trait (ie x*x*) while the father does not have this x-linked trait (XY) If they have one boy and one girl: The girl will receive an x chromosome from each parent, and will be x*x: this means she will be a carrier only, and will not display this recessive trait. The boy will receive an x chromosome from his mom and a y chromosome from his dad, so he will have to be x*y. The boy will always display the trait. It works similarly if the mother is a carrier(ie x*x): the boy is more likely to display the trait because he gets only one x chromosome.
What does it mean when you say their gene poll is gone?
There's no other non-family specimens to mate with.
